Hornbuckle (22-3) is coming off of a win over Brad Blackburn at BFC 25 in August. He is 3-1 fighting for Bellator, losing only to Ben Askren in the Season 2 welterweight tournament final. Hornbuckle has fought three times before for Sengoku, mounting a 2-1 record under their banner.

A Japanese fighter, Chonan (18-11) fought only in his home country for the first six years of his career. Trying his wares in the UFC, he mounted a 1-3 record in the Octagon before he was sent packing. He is 3-1 since returning to Japan, and remains one of only four fighters to have ever defeated UFC middleweight champion Anderson Silva, finishing him with a flying scissors heel hook at Pride’s 2004 New Year’s Eve event, Shockwave.

Sengoku is putting together a massive fight card for “Soul of Fight” that will feature Muay Thai and kickboxing bouts in addition to the long list of notable mixed martial arts bouts on the card.